Q Research Software - Q is for the interpretation, analysis, visualization and reporting of market research data.
MATLAB - A high-level language and interactive environment for numerical computation, visualization, and programming
Tinn-R - Tinn-R, the R code editor
GNU Octave - GNU Octave is a programming language for scientific computing.
NumPy - NumPy is the fundamental package for scientific computing with Python
Wolfram Mathematica - Mathematica has characterized the cutting edge in specialized processing—and gave the chief calculation environment to a large number of pioneers, instructors, understudies, and others around the globe.